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I am buying a 2005 dodge sprinter with a unknown 200w solar panel fixed to the roof. I am planning and have purchased a lot of equipment to 'upgrade' the solar system to the 12V system. I have purchased 2-100amp LiTime Lithium batteries, 2000w Renogy pure sine inverter, Renogy 40A MPPT charge...

I am buying a 2005 dodge sprinter with a unknown 200w solar panel fixed to the roof. I am planning and have purchased a lot of equipment to 'upgrade' the solar system to the 12V system. I have purchased 2-100amp LiTime Lithium batteries, 2000w Renogy pure sine inverter, Renogy 40A MPPT charge...

What would be considered too excessive in terms of different voltage (VOC) when combining circuits in series? I am aware that the voltage doubles in series, but would a certain voltage difference be dangerous? And when combining in parallel, is the short circuit open current used or the...

Thanks for the reply. I have seen a lot of solar panel arrays connected in series then parallel. But, not a lot of parallel then series. Is there considerations to account for when doing a parallel then series circuit? Should I branch the single 200W panel series circuit off of the Positive...